Talking-machine mechanism.



H. SHEBLE. TALKING MACHINE MECEANISM.

APPLICATION FILED MAY 6, 1907.

Patented Feb. 16, 1909.

UNITE, s'rn'rns P T NT ()FFICE.

. HORACE sHEBL oF PHILADELPHIA, IENNsYLvANIA, .rissisnoa To HAWTHORNE & SHEBLE MANUFACTURING COMPANY, or PHILADELPHIA,PENNSY LVANIA, A CORPORATION or PENNSYLVANIA.

No. 912,425. I Specification of To all whom it may concern:

Be it known that I, HoRAcn SHEBLH, a

I citizen of the United States, residing at- Philadelphia, in thecounty of Philadelphia and Stateof Pennsylvania, have invented a certain new and. useful Improvement in Talking-Machine Mechanisnnof which the following is a specification.

. This invention relates to talking-machines and-has reference more particularly to ma: chines of this character employing a recordtablet of cylindrical form. The invention is directed to the improvement of the construction of such machines, with respect especially to the mechanism for transmitting rotary motion from the driving shaft to the shaft on which the record-tablet is mounted,

'- tion is illustrated in the accompanying drawing, in which Figure 1 Is a sectional elevation of the machine, the section being on line 1-1 of Fig. 2, and Fig. 2 is an elevation. 7

Referring to-the drawing, 1 indicates a supporting plate on which the'parts are mounted, the motor being secured to the under sideof this plate and the feed-screw and 5 mandrel being mounted upon the 11 per side. Plate 1 preferably forms the top 0 a motorg bOX'WlllCh incloses the motor.

' Mounted for rotation in suitable bearings.

-' 2 depending from plate 1 is a shaft 3 to which is secured one end of a. long, fiat, spiral spring-4, the; other-end of which is connected to a rod 5 on a frame consisting of two plates 6 and 7 secured together.- These plates are loosely mounted on shaft 3 and one of-them, the plate 6, has gear-teeth cut in its periphery with which the teeth of 1 a pinion 8 mesh. This pinion is carried by a shaft 9 mounted insuitable bearings and having its outer end formed to be gripped by a winding handle. A spring 10 is coded on shaft 9 and has one endll secured to one of the bearingstherefor; this spring iswound in such direction that a slight backward movement of shaft 9 under the infin-v ence of spring 4' tightens it so that it grips shaft 9 and holds it against such'backward movement. Shaft 3 to which spring 1 is frarzme-macmnn M'EonA'NIsM.

Letters Patent.

Application filed. May a, 1907. Serial No. 372,057.

.a pinion 13 mounted on one end of a shaft .14 adapted to rotate in a suitable bearing PatentedFeb. 18, 1909.

formed in the frame depending from plate 1.' This shaft carriesat its other end a worm-gear 15.

Mounted on the upper-side of plate 1 are two brackets16 andl7 which support two rods 18 and 19 and in which is mounted for rotation a feed-screw shaft 20, the latter carrying a worm-gear 21. In horizontal alinement with the feed-screw is a rod 22 secured to bracket 16 and having a mandrel 23 loosely mounted thereon; A Worm-gear 2 L is formed on the-mandrel 23 directly opposite the gear-21. The, reprodncer 24 is of any suitable construction and is adapted to slide upon rods 18-and 19, it being supported mainly by a long sleeve 25 loose-on rod.18.

A movable block 26 is mounted on theframe of the reproducer and has threads out therein adapted to engage those of the feedscrew 20 to propel the re'produ'cer over the record cylinder 27 supported on mandrel 23. Mounted for rotation in suitable bearings, one formed inone of the brackets 2 and the other in the bracket 16, is a vertically disposed shaft'28 extending through an opening 'in the plate 1. At its lower end, this shaft has a worm 29 formed thereon, mesh- 1 ing with the worm-gear15, and at its upper end a worm 30 is-formedon theshaft meshingat one side "withthe worm-gear 24 for driving the record-cylinder and on the other side with the Worm-gear 21 for drivim the feed-screw. Secured on shaft 28 is a block 31, to which are secured the upper ends of two fiat springs 32, the lower ends of which are secured toa sleeve33 loose on-shaft 28 and adapted to slide freely thereon. These springs 32 carry weights 34 constitutinga centrifugal governon. The sleeve 33 has a disk 35 formed thereon.

A. rock-shaft '36 is mounted in suitable brackets sccuredto the under side. of the plate. 1 and carries-a crank 37, on the end of which is a leather buli'er adapted to engage one face of the disk'35. -Secured to the other end of the rock-shaft 36 a crank 38 having at its end a flat spring 39, with which co-. operates a lever 40 pivotally mounted in a slot formed in the base-plate l. A spring 41 is connected at one .end to the crank 38 and at the other end to the base-plate 1 and operates to rock shaft 36 in a direction to carry secured carries a gear 12 which meshes with the buffer on the end of crank 37 away from that by means of this screw the position ofthe face of disk 35. By turning lever 40 on its pivot, the shaft 36 maybe rocked to carry the end of crank 37 into'or-out of engagement with the disk 35, in order to start or stop the operation of the'machine. A screw 42 is mounted in an openingin base 1 and its end is adapted to engage the crank 38, so

the end of crank 37 may beadjnsted to regulate the speed of the motor as des1red.

It will be seen that the construction here disclosed is quite simple and compact. The

vertically disposed shaft'28 having worms upon its ends, one meshing with a powergear and the other with gears driving the cylinder and feed-scre w, and the ardriven rangement of the governor mechanism upon this shaft, contribute greatly to this simplicity and compactness. the machine can be manufactured at very small cost. Also, the double worm-gearing affords the further advantage that an end thrust in either of the bearingsfor shaft 28 with the consequent wear in the bearing is avoided.

Havlng now described my invention, what I claim as new therein and desire to secure by LettersPatent is as follows 1. The combination of a spring-motor, a shaft driven thereby, a worm-wheel on said shaft, a secondshaft, two worms thereon one meshingwith said worm-wheel, a rotary support, a rotary screw, means for connecting the other of said worms in driving relation to said supportand screw, and a centrifu algovernor mounted on said wormshaft, su stantially as set forth.

2, The combination of a plate, a spring- 7 motor secured to theunder side thereof, a

- an opening in said plate,two worms thereon shaft driven thereby, a worm-wheel upon said shaft, a second shaft extending through one meshing with said worm-wheel, a rotary support and a rotary screw mounted on the upper side of said plate, and means for connecting the other of said worms in driving For this reason,

ing on one side with the wormswheel on said support and. on the other side with the worm-wheel on said screw, substantially as set forth.

4. The combination of a motor, a shaft driven thereby, a worm-wheel thereon, a second shaft, two worms thereon one meshing with said worm-wheel, a support, awormwheel-thereon, a. screw, a worm-wheel thereon, the other of said worms upon said second shaft meshing on one side with the Wormwheel on said support and on the other side with the Worm-wheel on sai centrifugal governor on SaidWmon-Shaft, substantially asset forth.

5. The combination of a plate,'a springscrew, and a motor secured to the under side thereof, a

shaftdriven thereby, a worm-wheel mounted on said shaft, a second shaft extending through an opening in said plate, two worms on said shaft one meshing with saidworriiwheel, a. mandrel and a screw mounted on the upper side of said plate, worm-wheels fixed tosaid mandrel and with the other of said Worms on opposite screw meshing sides thereof, a centrifugal governor on said worm-shaft, and means coacting therewith for regulating the speed at which the motor drives the mandrel and screw, substantially as set forth.

This specification signed and witnessed this second day of May, 1907; p

HORACE SHEBLE lVitnesses:

' H. ME ER,

R. PRQDY. 

